The Hari River (Persian: هریرود‎ or Dari: هری رود‎, romanized: Harī Rōd; Pashto: د هري سیند‎) or Herat River is a river flowing 1,100 kilometres (680 mi) from the mountains of central Afghanistan to Turkmenistan, where it forms the Tejend oasis and disappears in the Karakum Desert. In Turkmenistan it is known as the Tejen or Tedzhen river and passes close to the city of Tedzhen. To the Ancient Greeks it was known as the Arius. In Latin, it was known as the Tarius. Part of this river is also in Iran.